package com.asdc.demo.exchage;

import com.asdc.demo.utils.RabbitMqUtils;
import com.rabbitmq.client.BuiltinExchangeType;
import com.rabbitmq.client.Channel;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * @ClassName EmitLogTopic
 * @Author bsy
 * @Description TOPIC 交换机模糊匹配
 * @Date 2022/3/13 22:03
 * @Version 1.0
 */
public class EmitLogTopic {
    private static final String EXCHANGE_NAME = "topic_logs";

    public static void main(String[] args) throws Exception {
        {
            try (Channel channel = RabbitMqUtils.getChannel()) {
                channel.exchangeDeclare(EXCHANGE_NAME, BuiltinExchangeType.TOPIC);
                /**
                 * Q1-->绑定的是
                 *	中间带 orange 带 3 个单词的字符串(*.orange.*)
                 * Q2-->绑定的是
                 *	最后一个单词是 rabbit 的 3 个单词(*.*.rabbit)
                 *	第一个单词是 lazy 的多个单词(lazy.#)
                 *
                 */
                Map<String, String> bindingKeyMap = new HashMap<>();
                bindingKeyMap.put("quick.orange.rabbit", "被队列 Q1Q2 接收到");
                bindingKeyMap.put("lazy.orange.elephant", "被队列 Q1Q2 接收到");
                bindingKeyMap.put("quick.orange.fox", " 被 队 列 Q1 接 收 到 ");
                bindingKeyMap.put("lazy.brown.fox", "被队列 Q2 接收到");
                bindingKeyMap.put("lazy.pink.rabbit", "虽然满足两个绑定但只被队列 Q2 接收一次");
                bindingKeyMap.put("quick.brown.fox", "不匹配任何绑定不会被任何队列接收到会被丢弃");
                bindingKeyMap.put("quick.orange.male.rabbit", "是四个单词不匹配任何绑定会被丢弃");
                bindingKeyMap.put("lazy.orange.male.rabbit", "是四个单词但匹配 Q2");
                for (Map.Entry<String, String> bindingKeyEntry : bindingKeyMap.entrySet()) {
                    String bindingKey = bindingKeyEntry.getKey();
                    String message = bindingKeyEntry.getValue();
                    channel.basicPublish(EXCHANGE_NAME, bindingKey, null, message.getBytes("UTF-8"));
                    System.out.println("生产者发出消息" + bindingKey+": "+message);
                }
            }
        }
    }
}